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    Radeon HD 6990M Crossfire vs Radeon R6 Carrizo

    If you are going to buy a new graphics card and are choosing between Radeon HD 6990M Crossfire and Radeon R6 Carrizo, there are a couple of things to consider. Cards with more VRAM in general perform better and allow you to play on higher graphics settings. Size also makes a difference. A model with a large heatsink can occupy up to three expansion slots on a motherboard. Be sure you have enough room in your PC case. When comparing GPUs with different architectures, more processing cores and even higher TFLOPS will not always translate to better performance. To help you decide which GPU you need, we have measured frame rates in a number of popular games. For more on how the Radeon HD 6990M Crossfire stacks up against Radeon R6 Carrizo, check out specs charts below.
    Radeon HD 6990M Crossfire Check Price
    Radeon R6 Carrizo Check Price

    Radeon HD 6990M Crossfire and Radeon R6 Carrizo are Laptop Graphics Cards

    Note: Radeon HD 6990M Crossfire and Radeon R6 Carrizo are only used in laptop graphics. They have lower GPU clock speed compared to the desktop variant, which results in lower power consumption, but also 10-30% lower gaming performance. Check available laptop models with Radeon HD 6990M Crossfire or Radeon R6 Carrizo here:

    Radeon HD 6990M Crossfire Laptops
    Radeon R6 Carrizo Laptops

    Main Specs

      Radeon HD 6990M Crossfire Radeon R6 Carrizo
    Power consumption (TDP) 12-35 Watt
    Memory type GDDR5
    Maximum RAM amount 2x2 GB
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    • Both cards are used in Laptops.
    • Radeon HD 6990M Crossfire is build with Terascale 2 architecture, and Radeon R6 Carrizo - with GCN 1.2/2.0.
    • Radeon HD 6990M Crossfire is manufactured by 40 nm process technology, and Radeon R6 Carrizo - by 28 nm process technology.

    Game benchmarks

    high / 1080p 35−40 0−1
    ultra / 1080p 21−24 0−1
    QHD / 1440p 16−18 0−1
    4K / 2160p 10−11 −
    low / 720p 60−65 10−12
    medium / 1080p 40−45 2−3
    The average gaming FPS of Radeon HD 6990M Crossfire in Assassin's Creed Odyssey is 766% more, than Radeon R6 Carrizo.

    Full Specs

      Radeon HD 6990M Crossfire Radeon R6 Carrizo
    Architecture Terascale 2 GCN 1.2/2.0
    Code name Blackcomb XTX Carrizo
    Type Laptop Laptop
    Release date 12 July 2011 4 June 2015
    Pipelines 2240 384
    Core clock speed 715 MHz
    Boost Clock 800 MHz
    Transistor count 2x1700 Million 2410 Million
    Manufacturing process technology 40 nm 28 nm
    Memory bus width 256 Bit 64/128 Bit
    Memory clock speed 900 MHz
    Shared memory - +
    DirectX DirectX 11, Shader 5.0 DirectX 12 (FL 12_0)
    Laptop size large medium sized
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